a=[1,1,3,4,5,0,4,4,5,3,3,100]
print len(a)
print a[-len(a):-1]
print a.count(4)
a.extend((3,4,'j','ad','a',(8,9,[0,[9,7]])))
print a
a.sort()
print a
b=[1,2,3,5,6]
c=len(b)
for i in range(0,c-1):
	print b[i],i
for k in b:
	print k,
b=[k+1 for k in b]
print type(b),type(a)